5-HIAA, Plasma

Test Code

39880

CPT Codes
83497<br /> Restricted Client Code

Preferred Specimen

1 mL plasma collected in heparin (green-top) tube, or EDTA (lavender-top) tube

Patient Preparation
Avoid bananas, avocados, plums, eggplant, tomatoes, plantain, pineapple, walnuts, and interfering drugs for a 72 hour period prior to and during collection. Plasma must be separated from cells within 45 minutes of venipuncture.

Minimum Volume

0.5 mL

Instructions

Send plasma in plastic transport tube. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.

Transport Temperature

Frozen

Specimen Stability

Room temperature: 72 hours
Refrigerated: 72 hours
Frozen: 14 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Gross hemolysis

Methodology
High Performance Liquid Chromatography, Tandem Mass Spectometry

Setup Schedule

Set up: Once a week; Report available: 8-15 days

Reference Range

<22 ng/mL

Clinical Significance

Plasma 5-hydroxy-indoleacetic acid (5HIAA or 5-HIAA) is a metabolite of serotonin that can be elevated as a result of carcinoid tumors/carcinoid syndrome.

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.